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or lighting adapters
making it simple to reach the optimal Vapor Pressure Deficit for maximum growth
thyme and wintergreen) to treat hard to control pest insects
• Creates a fibrous
producing optimal amounts of airflow
23_1/2x23_1/2x1 MERV 13 Plus Carbon AC Furnace Filters 6 Pack grow-system/-trays/-reservoirs or lighting adaptersNordic Pure Custom MERV 13 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition
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